Relevant bibliographies by topics / Termogram TGA

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Academic literature on the topic 'Termogram TGA'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Termogram TGA"

1

Dewi, Wiwiek Utami, and Yulia Azatil Ismah. "DEKOMPOSISI TERMAL PROPELAN KOMPOSIT BERBASIS AMONIUM PERKLORAT/HYDROXY TERMINATED POLYBUTADIENE (AP/HTPB) (THE THERMAL DECOMPOSITION ANALYSIS OF AMMONIUM PERCHLORATE/HYDROXYTERMINATED POLYBUTADIENE (AP/HTPB) COMPOSITE SOLID PROPELLANT)." Jurnal Teknologi Dirgantara 14, no. 1 (2018): 17. http://dx.doi.org/10.30536/j.jtd.2016.v14.a2944.

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Thermal decomposition process of AP/HTPB solid propellant type RUM, 450 and 1220 were investigated by DTG60 (Differential Thermogravimetric) with operational parameters: temperature 30 – 400oC, nitrogen flow rate 50 ml/min, and heating rate 2.5 C/min. Thermal decomposition analysis will be the first step of decomposition kinetics research in determining life time of the propellant. TGA curve of propellant RUM was found to be two staged meanwhile the thermal decomposition of propellant 450 and 1220 has become one staged. The DTA curve/thermogram of propellant RUM show the formation of intermedi
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Dewi, Wiwiek Utami, and Yulia Azatil Ismah. "DEKOMPOSISI TERMAL PROPELAN KOMPOSIT BERBASIS AMONIUM PERKLORAT/HYDROXY TERMINATED POLYBUTADIENE (AP/HTPB)." Jurnal Teknologi Dirgantara 14, no. 1 (2016): 17. http://dx.doi.org/10.30536/j.jtd.2016.v14.a2564.

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Thermal decomposition process of AP/HTPB solid propellant type RUM, 450 and 1220 were investigated by DTG60 (Differential Thermogravimetric) with operational parameters: temperature 30 – 400oC, nitrogen flow rate 50 ml/min, and heating rate 2.5 C/min. Thermal decomposition analysis will be the first step of decomposition kinetics research in determining life time of the propellant. TGA curve of propellant RUM was found to be two staged meanwhile the thermal decomposition of propellant 450 and 1220 has become one staged. The DTA curve/thermogram of propellant RUM show the formation of intermedi
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3

Zulkefli, Nur Azyan binti, Muhammad Nur Faez Mohd Sahaid, Muhammad Ashman Hakimi bin Azizan, and harifah Nabihah binti Syed Jaafar. "Potensi Mikrosfera Karbon sebagai Pengkapsul Mangkin Aluminium Sulfat." Sains Malaysiana 54, no. 2 (2025): 415–24. https://doi.org/10.17576/jsm-2025-5402-08.

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Mangkin aluminium sulfat (Al2(SO4)3) memainkan peranan yang penting terutamanya dalam penghasilan bahan kimia ringkas kerana memiliki tapak asid Lewis dan Brønsted. Walau bagaimanapun, fungsi Al2(SO4)3 masih terhad kerana ia mudah terdegradasi pada tindak balas kritikal yang menyebabkan kebocoran tapak aktif pada hasil akhir tindak balas. Maka, kajian ini bertujuan untuk mengkapsulkan Al2(SO4)3 dengan mikrosfera karbon melalui kaedah emulsi (tunggal dan ganda dua) dengan memvariasikan penambahan ammonium bikarbonat (NH4HCO3) pada setiap lapisan emulsi. Keputusan mikroskop optik (OM) mendapati
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Mohd. Akhir, Nur Atiqah, Maizatulnisa Othman, Yose Fachmi Buys, Norhashimah Shaffiar, Dzun Noraini Jimat, and Sharifah Imihezri Syed Shaharuddin. "CHARACTERISATION AND PRODUCTION OF POLY (LACTIC ACID)/POLY(ETHYLENE GLYCOL) MICROFIBER VIA MELT DRAWN SPINNING PROCESS." IIUM Engineering Journal 22, no. 1 (2021): 201–12. http://dx.doi.org/10.31436/iiumej.v22i1.1364.

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In this study, melt blended compositions of pure PLA with additions of polyethylene glycol (PEG) up to 30 wt% were prepared. Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), and thermogravimetric analysis (TGA) were used to investigate the properties of PLA/PEG blends, such as structural, thermal, and morphological properties. The results showed that further increments of PEG cause the -OH group of PLA/PEG blends to show a broad peak, indicating that there is hydrogen bonding interaction between PEG and PLA chains. DSC result revealed that the addition o
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Indra, Indra, Ahmad Fauzi, and Ratih Aryani. "Karakterisasi dan Uji Disolusi Aspirin Hasil Rekristalisasi Penguap Pelarut." Jurnal Sains Farmasi & Klinis 6, no. 2 (2019): 164. http://dx.doi.org/10.25077/jsfk.6.2.164-170.2019.

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Aspirin merupakan obat analgetik dan antipiretik yang termasuk dalam kelompok Biopharmaceutical Classification System (BCS) kelas II dengan kelarutan rendah dan absorpsi tinggi. Pada penelitian ini telah dilakukan modifikasi kristal aspirin untuk meningkatkan laju disolusi dengan menggunakan metode rekristaliasi penguapan 3 jenis pelarut yaitu methanol (AMP), tetrahidrofuran (ATP) dan kloroform (AKP). Karakteristik sifat fisikokimia hasil rekristalisasi aspirin dilakukan menggunakan mikroskop polarisasi, X-Ray difraktometer serbuk, Spektrofotometer IR, differential scanning calorimeter (DSC) d
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IVÁN, MACHÍN, CARLOS DE JESÚS JUAN, and F. D'ELÍA CAMACHO LUÍS. "Uso de la química computacional como complemento del análisis termogravimétrico (TGA-QMS) para la asignación de grupos funcionales: Evaluación de la señal de SO2 durante la pirólisis de un asfalteno." Catálisis 1 (January 1, 2012): 102–11. https://doi.org/10.5281/zenodo.4011246.

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Se ha desarrollado una propuesta metodológica simple que implica el uso de herramientas de la Química Computacional para identificar los posibles grupos funcionales responsables de la emisión de gases generados durante experiencias de análisis termogravimétrico con acoplamiento a un cuadrupolo de masas (TGA-QMS) de muestras de un asfalteno proveniente de un crudo pesado venezolano. Esta metodología fue aplicada a la identificación de los grupos funcionales responsables de la generación del SO2. La metodología teórica se resu
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Villarreal Gómez, Luis Jesús, Ana Leticia Iglesias, Susana Fragoso Angeles, Ricardo Vera Graziano, Graciela Lizeth Pérez González, and Luis Enrique Gómez Pineda. "Síntesis y Caracterización de Hidroxiapatita Sintética para la Preparación de Filmes de PLGA/HAp con Potencial Uso en Aplicaciones Biomédicas." RECIBE, REVISTA ELECTRÓNICA DE COMPUTACIÓN, INFORMÁTICA, BIOMÉDICA Y ELECTRÓNICA 7, no. 2 (2018): B1–1—B1–24. http://dx.doi.org/10.32870/recibe.v7i2.94.

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Los implantes de fijación de fracturas se emplean para resolver una fractura de hueso, actualmente hay una variedad de dispositivos como: agujas intramedulares, tachuelas y tornillos metálicos. Su función es estabilizar fragmentos de hueso en su sitio correcto durante su reparación ósea, para lograr una vascularización temprana. El objetivo de este estudio es sintetizar y caracterizar fisicoquímicamente hidroxiapatita sintética para fabricar filmes de PLGA 50:50/HAp. Se utilizó la técnica de espectroscopia infrarroja transformada de Fourier (FTIR) para buscar grupos funcionales principales. El
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8

Garcia, Dorival Pinheiro, José Cláudio Caraschi, and Gustavo Ventorim. "DECOMPOSIÇÃO TÉRMICA DE PELLETS DE MADEIRA POR TGA." HOLOS 1 (February 15, 2016): 327. http://dx.doi.org/10.15628/holos.2016.3886.

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A utilização dos pellets de madeira para a geração de energia térmica está se difundindo no Brasil e a termogravimetria tem sido amplamente aplicada para o estudo da decomposição da madeira e seus principais componentes como a celulose, hemiceluloses e lignina. O objetivo deste trabalho foi investigar o comportamento térmico de quatro diferentes amostras de pellets de madeira, em condições não isotérmicas, por meio das análises termogravimétricas TGA. Os ensaios foram conduzidos desde a temperatura ambiente até 500°C, com taxa de aquecimento de 20°C/min, em atmosfera inerte de gás nitrogênio,
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9

Da Silva, Janiel Costa, Leandro Josuel da Costa Santos, Sergio Marcelo Coelho Lustosa, Moisés das Virgens Santana, Vicente Galber Freitas Viana, and Durcilene Alves Da Silva. "AVALIAÇÃO DA EFICIÊNCIA DA EXTRAÇÃO DO CAROTENOIDE NORBIXINA DE SEMENTES DE URUCUM (Bixa orellana L.) UTILIZANDO SOLUÇÃO ALCALINA POR DUAS ROTAS DE EXTRAÇÃO." ARACÊ 7, no. 1 (2025): 2724–40. https://doi.org/10.56238/arev7n1-166.

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Os corantes a base de urucum vem sendo um dos mais utilizados no mundo e também com grande aplicação nas indústrias têxtil, de tintas, cosmética, farmacêutica e alimentícia. Dentre eles, o carotenoide norbixina que possui propriedades antioxidantes, antimicrobianas e antitumorais. Dessa forma, o objetivo desse trabalho é extrair a norbixina das sementes de urucum por meio da extração alcalina considerando duas rotas de extração, pois, o desenvolvimento de um método de extração eficiente, ambientalmente seguro e economicamente viável tornou-se indispensável. As caracterizações realizadas foram
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Tenia, Rita, Ángel Morrillo, Juan Chirinos, Darmenia Ibarra, Yanixia Sánchez, and Blanca Rojas. "SÍNTESIS Y CARACTERIZACIÓN DE POLIETILENOS OBTENIDOS A PARTIR DE CATALIZADORES DEL TIPO ZIEGLER-NATTA (ZN) BASADOS EN ESPECIES MONO Y BIMETÁLICAS SOPORTADOS EN UN ADUCTO DEL TIPO MgCl2/SiCl4-n(OHex)n." Rev. LatinAm. Metal. Mat. 32, no. 2 (2017): 146–55. https://doi.org/10.5281/zenodo.7893453.

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  En el siguiente trabajo se evaluaroncatalizadoresdel tipo Ziegler-Natta (ZN) basado en especies soportadas en un aducto del tipo MgCl2/SiCl4-n(OHex)npara polimerizar etileno. También,se caracterizaron los polietilenos (PE) obtenidos con sistemas mono y bimetálicos mediante calorimetría diferencial de barrido (Differential Scanning Calorimetry, DSC), análisis termogravimétrico (TGA), microscopia electrónica de barrido (MEB) y de transmisión (MET).Las propiedades térmicas de los PE(Tmentre 131-136°C y (1-λ) entre 58-64%)se
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